BishBosh.State.CoordinatesByRankByLogicalColour

AUTHOR

Dr. Alistair Ward

DESCRIPTION

• A view of the board from the perspective of its pieces.
• cf. the square-centric model of the board defined in BishBosh.State.MaybePieceByCoordinates.

Types

Type-synonyms

type BareCoordinatesByRankByLogicalColour = ArrayByLogicalColour CoordinatesByRank

The coordinates of all the pieces of one rank, for both logical colours.

type CoordinatesByLogicalColour = ArrayByLogicalColour [Coordinates]

A list of coordinates for each logical colour.

Data-types

data CoordinatesByRankByLogicalColour

• This structure allows one to determine the set of coordinates where a type of piece is located.
• CAVEAT: the list of coordinates is unordered, so test for equality using deconstruct . sortCoordinates .

Instances

NFData CoordinatesByRankByLogicalColour

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

rnf :: CoordinatesByRankByLogicalColour -> ()

SelfValidating CoordinatesByRankByLogicalColour

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

findInvalidity :: CoordinatesByRankByLogicalColour -> [String]

Hashable CoordinatesByRankByLogicalColour

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

listRandoms :: Zobrist positionHash -> CoordinatesByRankByLogicalColour -> [positionHash]

Seeker CoordinatesByRankByLogicalColour

• Find any Knights of the specified logical colour, in attack-range around the specified coordinates.
• CAVEAT: nothing is said about whether any piece at the specified coordinates belongs to the opponent, as one might expect.

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

findProximateKnights :: CoordinatesByRankByLogicalColour -> LogicalColour -> Coordinates -> [Coordinates]

findPieces :: (Piece -> Bool) -> CoordinatesByRankByLogicalColour -> [LocatedPiece]

countPawnsByFileByLogicalColour :: CoordinatesByRankByLogicalColour -> NPiecesByFileByLogicalColour

View CoordinatesByRankByLogicalColour

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

fromAssocs :: [LocatedPiece] -> CoordinatesByRankByLogicalColour

Mutator CoordinatesByRankByLogicalColour

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

defineCoordinates :: Maybe Piece -> Coordinates -> CoordinatesByRankByLogicalColour -> CoordinatesByRankByLogicalColour

movePiece :: Move -> Piece -> Maybe Rank -> Either Coordinates (Maybe Rank) -> CoordinatesByRankByLogicalColour -> CoordinatesByRankByLogicalColour

Censor CoordinatesByRankByLogicalColour

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

countPiecesByLogicalColour :: CoordinatesByRankByLogicalColour -> (NPieces, NPieces)

countPieces :: CoordinatesByRankByLogicalColour -> NPieces

countPieceDifferenceByRank :: CoordinatesByRankByLogicalColour -> NPiecesByRank

hasInsufficientMaterial :: CoordinatesByRankByLogicalColour -> Bool

hasBothKings :: CoordinatesByRankByLogicalColour -> Bool

Accountant CoordinatesByRankByLogicalColour

Defined in BishBosh.State.CoordinatesByRankByLogicalColour

Methods

sumPieceSquareValueByLogicalColour :: PieceSquareByCoordinatesByRank -> CoordinatesByRankByLogicalColour -> NPieces -> [Base]

Functions

findPassedPawnCoordinatesByLogicalColour :: CoordinatesByRankByLogicalColour -> CoordinatesByLogicalColour

For each logical colour, find the coordinates of any passed Pawns (https://en.wikipedia.org/wiki/Passed_pawn).

findPiecesOfColour

Arguments

:: CoordinatesByRankByLogicalColour

-> LogicalColour

The logical colour of the pieces to find.

-> [LocatedPiece]

Locate all pieces of the specified logical colour.

assocs :: CoordinatesByRankByLogicalColour -> [(Piece, [Coordinates])]

Build an association-list.

listCoordinates :: CoordinatesByRankByLogicalColour -> [Coordinates]

Access the coordinate-lists.

Accessors

getKingsCoordinates

Arguments

:: CoordinatesByRankByLogicalColour

-> LogicalColour

The logical colour of the King to find.

-> Coordinates

Get the coordinates of the King of the specified logical colour.

dereference :: CoordinatesByRankByLogicalColour -> LogicalColour -> Rank -> [Coordinates]

Dereference the array.

Mutators

sortCoordinates :: Transformation

Independently sort each list of coordinates.